There are powerful market drivers for small cells to be deployed in a multi-operator or neutral host environment, especially when they are in enterprise locations. However, to date small cells have not been widely deployed in a neutral host context, despite the availability of standards like 3GPP MOCN, and a clear market need. This document seeks to address some of the most common reasons why deployment has taken off slowly, outlining existing solutions and pointing to emerging ones, as well as highlighting lessons that can be learned from DAS and Wi-Fi.